Wireless-network-based communication method, terminal device, and network device

ABSTRACT

Provided in the embodiments of the present invention are a wireless-network-based communication method, terminal device, and network device. The method comprises: a terminal device detecting first downlink control information (DCI) sent by a network device; a terminal device detecting second DCI sent by a network device; the terminal device joining control information of the first DCI and second DCI so as to send or receive target data. In the embodiments of the present invention, the first DCI and second DCI may carry different types of control information; separately transmitting the first DCI and second DCI satisfies the requirements for transmission of different types of control information; insofar as the requirements for transmission of different types of control information are satisfied, different types of control information are transmitted to the terminal device, such that the terminal device can send or receive target data.

TECHNICAL FIELD

The disclosure relates to the field of communications, and particularlyrelates to a wireless network based communication method, a terminaldevice and a network device.

BACKGROUND

In an existing network architecture, a network-side device sendsDownlink Control Information (DCI) to a terminal device via a publiccontrol channel, the terminal device performs a DCI blind test accordingto a transmission mode in which the terminal device is located and a DCIformat possibly adopted by the network-side device under thetransmission mode to obtain one DCI corresponding to the terminaldevice, and then the terminal device performs corresponding operationson a data channel according to control information in the DCI. However,in a future 5th-Generation (5G) network architecture, the DCI includesmany types of control information and transmission requirements ondifferent types of control information may be not the same. If a methodfor transmitting the DCI in the existing network architecture isadopted, i.e., various types of control information of the terminaldevice are transmitted on one DCI, it is very difficult to meet thetransmission requirements of the different types of the controlinformation. Therefore, under a condition in which there are many typesof control information and the transmission requirements on differenttypes of control information are different, how to transmit the controlinformation to the terminal device at a minimum control signalingoverhead on the premise of meeting the transmission requirements on thedifferent types of the control information is a problem to be solved.

SUMMARY

The disclosure provides a wireless network based communication method, aterminal device and a network device, which may meet transmissionrequirements on different types of control information to reduce thesignaling overhead.

A first aspect provides a wireless network based communication method,which includes: a terminal device detects first DCI sent by a networkdevice; the terminal device detects second DCI sent by the terminaldevice; and the terminal device sends or receives target data accordingto a combination of control information in the first DCI and controlinformation in the second DCI.

The first DCI and the second DCI may include different types of controlinformation.

Through two DCIs, the different types of control information may besent, so that the transmission requirements on the different types ofthe control information can be met and the terminal device sends orreceives the target data according to the control information in the twoDCIs. In addition, when the different types of control information havedifferent requirements on a transmission cycle, the different types ofcontrol information are carried by the two DCIs so that a sending cycleof the control information can be determined reasonably to save acertain signaling overhead.

In combination with the first aspect, in some implementation manners ofthe first aspect, the first DCI and the second DCI have different DCIformats from each other.

In combination with the first aspect, in some implementation manners ofthe first aspect, length of information in the first DCI is differentfrom length of information in the second DCI and/or information contentin the first DCI is different from information content in the secondDCI.

In combination with the first aspect, in some implementation manners ofthe first aspect, that a terminal device detects first DCI sent by anetwork device includes: the terminal device regularly detects the firstDCI sent by the network device at a first resource cycle; and that theterminal device detects second DCI sent by the terminal device includes:the terminal device regularly detects the second DCI sent by the networkdevice at a second resource cycle.

In combination with the first aspect, in some implementation manners ofthe first aspect, the first resource cycle and the second resource cycleare an integral multiple of a time domain resource unit for transmittinga signal; and the first resource cycle is greater than the secondresource cycle.

It should be understood that, the first resource cycle may also besmaller than or equal to the second resource cycle.

In combination with the first aspect, in some implementation manners ofthe first aspect, that the terminal device sends or receives target dataaccording to a combination of control information in the first DCI andcontrol information in the second DCI includes:

the terminal device sends or receives the target data according to acombination of control information in the second DCI detected within acurrent second resource cycle and control information in the first DCIdetected recently.

When the first resource cycle is smaller than the second resource cycle,the terminal device may send or receive the target data in combinationwith the control information in the first DCI detected within a currentfirst resource cycle and in the second DCI detected recently.

In combination with the first aspect, in some implementation manners ofthe first aspect, the method further includes: when the terminal devicedoes not detect the second DCI within the current second resource cycle,the terminal device does not send or receive the data.

In combination with the first aspect, in some implementation manners ofthe first aspect, that a terminal device detects first DCI sent by anetwork device includes: the terminal device detects the first DCI on apublic control channel, and/or the terminal device detects the first DCIaccording to public transmission parameters of a cell.

In combination with the first aspect, in some implementation manners ofthe first aspect, that the terminal device detects second DCI sent bythe network device includes: the terminal device detects the second DCIon the public control channel, and/or the terminal device detects thesecond DCI on parts of frequency domain resources of a system bandwidth.

In combination with the first aspect, in some implementation manners ofthe first aspect, the parts of frequency domain resources are frequencydomain resources indicated by the first DCI.

In combination with the first aspect, in some implementation manners ofthe first aspect, a control channel for carrying the second DCI and adata channel for carrying the target data occupy same time domainresources or same frequency domain resources.

In combination with the first aspect, in some implementation manners ofthe first aspect, the first DCI includes at least one of the followinginformation used when the terminal device sends or receives the targetdata:

a sub-carrier interval;

a total number of sub-carriers under a preset bandwidth;

a total number of sub-carriers included in a Physical Resource Block(PRB);

the length of an Orthogonal Frequency Division Multiplexing (OFDM)symbol;

a total number of points used to generate an OFDM signal by Fouriertransform or inverse Fourier transform;

a total number of OFDM symbols included in a Transmission Time Interval(TTI);

a total number of TTIs included in a preset time unit;

signal prefix information;

A/N feedback time sequence information;

a physical resource distribution manner; or

frequency hopping configuration information.

In combination with the first aspect, in some implementation manners ofthe first aspect, the second DCI includes at least one of the followinginformation used when the terminal device sends or receives the targetdata:

a physical resource distribution information;

uplink sending power control information;

A/N feedback time sequence information;

frequency hopping configuration information;

Hybrid Automatic Repeat Request (HARQ) progress information;

Channel State Information (CSI) reporting trigger information;

Sounding Reference Signal (SRS) transmission trigger information;

transmission block transmission information;

uplink Demodulation Reference Signal (DMRS) configuration information;or

downlink DMRS configuration information.

A second aspect provides a wireless network based communication method,which includes: a network device sends first DCI to a terminal device;and the network device sends second DCI to the terminal device. Herein,the first DCI and the second DCI are used by the terminal device to sendor receive target data.

Through two DCIs, the different types of control information may besent, so that the transmission requirements on the different types ofthe control information can be met and the terminal device sends orreceives the target data according to the control information in the twoDCIs. In addition, when the different types of control information havedifferent requirements on a transmission cycle, the different types ofcontrol information are carried by the two DCIs so that a sending cycleof the control information can be determined reasonably to save acertain signaling overhead.

In combination with the second aspect, in some implementation manners ofthe second aspect, the first DCI and the second DCI have different DCIformats from each other.

In combination with the second aspect, in some implementation manners ofthe second aspect, length of information in the first DCI is differentfrom length of information in the second DCI and/or information contentin the first DCI is different from information content in the secondDCI.

In combination with the second aspect, in some implementation manners ofthe second aspect, that a network device sends first DCI to a networkdevice includes: the network device regularly sends the first DCI to theterminal device at a first resource cycle; and that the network devicesends second DCI to the terminal device includes: the network deviceregularly sends the second DCI to the terminal device at a secondresource cycle.

In combination with the second aspect, in some implementation manners ofthe second aspect, the first resource cycle and the second resourcecycle are an integral multiple of a time domain resource unit fortransmitting a signal; and the first resource cycle is greater than thesecond resource cycle.

In combination with the second aspect, in some implementation manners ofthe second aspect, that a network device sends first DCI to a networkdevice includes: the network device sends the first DCI on a publiccontrol channel, and/or the network device sends the first DCI accordingto public transmission parameters of a cell.

In combination with the second aspect, in some implementation manners ofthe second aspect, that the network device sends second DCI to theterminal device includes: the network device sends the second DCI on thepublic control channel, and/or the network device sends the second DCIon parts of frequency domain resources of a system bandwidth.

In combination with the second aspect, in some implementation manners ofthe second aspect, the parts of frequency domain resources are frequencydomain resources indicated by the first DCI.

In combination with the second aspect, in some implementation manners ofthe second aspect, a control channel for carrying the second DCI and adata channel for carrying the target data occupy same time domainresources or same frequency domain resources.

In combination with the second aspect, in some implementation manners ofthe second aspect, the first DCI includes at least one of the followinginformation used when the terminal device sends or receives the targetdata:

a sub-carrier interval;

a total number of sub-carriers under a preset bandwidth;

a total number of sub-carriers included in a PRB;

the length of an OFDM symbol;

a total number of points used to generate an OFDM signal by Fouriertransform or inverse Fourier transform;

a total number of OFDM symbols included in a TTI;

a total number of TTIs included in a preset time unit;

signal prefix information;

A/N feedback time sequence information;

a physical resource distribution manner; or

frequency hopping configuration information.

In combination with the second aspect, in some implementation manners ofthe second aspect, the first DCI includes at least one of the followinginformation used when the terminal device sends or receives the targetdata:

a physical resource distribution manner;

uplink sending power control information;

A/N feedback time sequence information;

frequency hopping configuration information;

HARQ progress information;

CSI reporting trigger information;

SRS transmission trigger information;

transmission block transmission information;

uplink DMRS configuration information; or

downlink DMRS configuration information.

A third aspect provides a terminal device, which includes a module forexecuting the method in the first aspect.

A fourth aspect provides a terminal device, which includes a module forexecuting the method in the second aspect.

A fifth aspect provides a terminal device, which includes a memory, atransceiver and a processor; the memory stores a program; the processoris configured to execute the program; and when the program is executed,the processor executes the method in the first aspect based on thetransceiver.

A sixth aspect provides a terminal device, which includes a memory and atransceiver; the memory stores a program; and when the program isexecuted, the transceiver is configured to execute the method in thesecond aspect.

A seventh aspect provides a computer readable storage medium; thecomputer readable storage medium stores a program code executed by theterminal device, and the program code includes an instruction forexecuting the method in the first aspect.

An eighth aspect provides a computer readable storage medium; thecomputer readable storage medium stores a program code executed by thenetwork device, and the program code includes an instruction forexecuting the method in the second aspect.

BRIEF DESCRIPTION OF DRAWINGS

In order to describe the technical solutions in the embodiments of thedisclosure more clearly, a simple introduction on the accompanyingdrawings which are needed in the description of the embodiments is givenbelow. Apparently, the accompanying drawings in the description beloware merely some of the embodiments of the disclosure, based on whichother drawings may be obtained by those of ordinary skill in the artwithout any creative effort.

FIG. 1 is a schematic flowchart of a wireless network basedcommunication method in an embodiment of the disclosure.

FIG. 2 is a schematic flowchart of a wireless network basedcommunication method in an embodiment of the disclosure.

FIG. 3 is a schematic flowchart of a wireless network basedcommunication method in an embodiment of the disclosure.

FIG. 4 is a schematic flowchart of a wireless network basedcommunication method in an embodiment of the disclosure.

FIG. 5 is a schematic structural diagram of a terminal device in anembodiment of the disclosure.

FIG. 6 is a schematic structural diagram of a network device in anembodiment of the disclosure.

FIG. 7 is a schematic structural diagram of a terminal device in anembodiment of the disclosure.

FIG. 8 is a schematic structural diagram of a network device in anembodiment of the disclosure.

DETAILED DESCRIPTION

It should be understood that the technical solutions in the embodimentsof the disclosure may be applied in various communications systems, suchas a Global System of Mobile communication (GSM) system, a Code DivisionMultiple Access (CDMA) system, a Wideband Code Division Multiple Access(WCDMA) system, a General Packet Radio Service (GPRS) system, a LongTerm Evolution (LTE) system, and a Universal Mobile TelecommunicationSystem (UMTS), etc. The current communication system may be particularlyapplied to a future 5G mobile communication technology system.

The terminal device in the embodiments of the disclosure may also beUser Equipment (UE), an access terminal, a user unit, a user station, amobile station, a mobile platform, a remote station, a remote terminal,a mobile device, a user terminal, a terminal, a wireless communicationdevice and a user proxy or user apparatus. The access terminal may be acellular phone, a cordless telephone, a Session Initiation Protocol(SIP) phone, a Wireless Local Loop (WLL) station, a Personal DigitalAssistant (PDA), a handheld device having a wireless communicationfunction, a computing device or other processing devices,vehicle-amounted devices and wearable devices connected to a wirelessmodulator-demodulator, and a terminal device in a future 5G network or aterminal device in a future evolved Public Land Mobile Network (PLMN),all of which are not defined in the embodiments of the disclosure.

The network device in the embodiments of the disclosure may be a deviceused for communicating with the terminal device. The network device maybe a Base Transceiver Station (BTS) in a GSM or CDMA, may also be aNodeB (NB) in a WCDMA system, may further be an Evolutional NodeB (eNBor eNodeB) in an LTE system and may further be a wireless controller ina Cloud Radio Access Network (CRAN) scene; or the network device may bea relay station, an access point, a vehicle-amounted device, a wearabledevice as well as a network device in the future 5G system or a networkdevice in the future evolved PLMN network, all of which are not limitedin the embodiments of the disclosure.

In a 5G system, the terminal device may support multiple different basicparameter sets (numerology) in a carrier. These different basicparameter sets may be multiplexed by Time Division Multiplex (TDM) orFrequency Division Multiplex (FDM). Herein, the data transmission forFDM multiplexing by using different basic parameter sets may bemodulated based on control information transmitted by a public controlchannel (such as a physical downlink control channel), and may also bemodulated based on control information transmitted by an independentcontrol channel (such as a user exclusive control channel). In addition,whichever basic parameter set is used by the terminal devicespecifically may be indicated by the control information to a terminal.In other words, the terminal device may be indicated by different typesof control information to execute corresponding services in the future5G system. Moreover, because the types of the control information areincreased, how to transmit the control information to the terminaldevice at a minimum signaling overhead on the premise of meeting thetransmission requirements on the different types of control informationis a problem to be solved. According to the wireless network basedcommunication method provided by the embodiments of the disclosure,multiple DICs are sent to the terminal device via the network device, sothat the different types of control information may be carried indifferent DCIs. By separately transmitting the different DCIs, thedifferent types of control information are transmitted to the terminaldevice on the premise of meeting the transmission requirements on thedifferent types of control information and the terminal device can sendor receive the target data on a data channel according to the receivedcontrol information. The wireless network based communication methodprovided by the embodiments of the disclosure will be described below indetail in combination with FIG. 1 to FIG. 4.

FIG. 1 is a schematic flowchart of a wireless network basedcommunication method in an embodiment of the disclosure. The methodshown in FIG. 1 includes the following operations.

At 110, a terminal device detects first DCI sent by a network device.

If there are multiple DCI formats possibly used by the first DCI, theterminal device detects the DCIs respectively based on each DCI formattill the first DCI is detected based on a certain DCI format. After thefirst DCI is detected, the terminal device may obtain controlinformation included in the first DCI.

At 120, the terminal device detects second DCI sent by the networkdevice.

Same as the first DCI, if there are multiple DCI formats possibly usedby the second DCI, the terminal device detects the DCIs respectivelybased on each DCI format till the second DCI is detected based on acertain DCI format. After the second DCI is detected, the terminaldevice may obtain control information included in the second DCI.

In some embodiments, the first DCI and the second DCI may includedifferent types of control information. In this way, the first DCI andthe second DCI are respectively used to carry the different types ofcontrol information according to transmission requirements on thecontrol information and thus the transmission requirements on thedifferent types of control information are met.

In some embodiments, the first DCI and the second DCI may have differentDCI formats. For example, the DCI format of the first DCI is DCI1 andthat of the second DCI is DCI1A. Of course, the first DCI and the secondDCI may also have the same DCI format.

In some embodiments, the first DCI and the second DCI have differentformats, which may refer to that length of information in the first DCIis different from length of information in the second DCI and/orinformation content in the first DCI is different from informationcontent in the second DCI. Herein, different information lengths referto that total bit numbers of the control information included in theDCIs are different, and different information contents refer to thatcontrol information domains included in the DCIs or contents indicatedby each control domain in the DCIs are different.

It should be understood that, the network device may further send athird DCI to the terminal device, so that the terminal device sends orreceives target data jointly according to the control information in thefirst DCI, the second DCI and the third DCI. As a matter of fact, thenetwork device may send multiple DCIs to the terminal device, so thatthe terminal device sends or receives the target data according to thereceived multiple DCIs. The number of DCIs sent by the network device isnot defined in this embodiment of the disclosure.

At 130, the terminal device sends or receives target data according to acombination of control information in the first DCI and controlinformation in the second DCI.

In this embodiment of the disclosure, through two DCIs, the differenttypes of control information may be sent, so that the transmissionrequirements on the different types of the control information can bemet and the terminal device sends or receives the target data accordingto the control information in the two DCIs. In addition, when thedifferent types of control information have different requirements on atransmission cycle, the different types of control information arecarried by the two DCIs so that a sending cycle of the controlinformation can be determined reasonably to save a certain signalingoverhead.

Specifically, the terminal device may send or receive the target data onthe data channel according to target control information obtained fromthe first DCI and the second DCI. It should be understood that, thetarget control information herein includes the control information inthe first DCI and the control information in the second DCI. In otherwords, the terminal device sends or receives the target data onceaccording to the control information in the first DCI and the secondDCI. When the terminal device obtains the first DCI and the second DCIagain in a next time, the terminal device may send or receive the targetdata once again.

When the first DCI and the second DCI include control information forindicating the terminal device of uplink data transmission, the terminaldevice transmits uplink data after receiving the first DCI and thesecond DCI. When the first DCI and the second DCI include controlinformation for indicating the terminal of receiving data on a downlinkchannel, the terminal device detects the data channel after receivingthe first DCI and the second DCI to obtain the downlink data.

Optionally, as an embodiment, the terminal device may regularly performsthe detection when detecting the first DCI and the second DCI.Specifically, the terminal device may regularly detect the first DCIsent by the network device at a first resource cycle and regularlydetect the second DCI sent by the network device at a second resourcecycle. That is to say, the network device may send the DCIs withperiodic time domain resources. Specifically, the network device mayrespectively send the first DCI and the second DCI at the first resourcecycle and the second resource cycle, and the terminal device alsorespectively detects the first DCI and the second DCI at correspondingresource cycles. It should be understood that, the terminal device mayonly perform the periodic detection on a downlink transmission channeland may also perform the periodic detection on all physical resources.In other words, the first resource cycle and the second resource cyclemay be resource cycles for a downlink transmission resource (such as adownlink sub-frame), for example, the terminal device detects once everya plurality of downlink sub-frames, and may also resource cycles for alluplink and downlink transmission resources, for example, the terminaldevice detects once every a plurality of sub-frames and the sub-framesmay be guaranteed to be downlink sub-frames via configuration.

Optionally, as an embodiment, the first resource cycle and the secondresource cycle may be an integral multiple of a time domain resourceunit for transmitting a signal. The time domain resource unit fortransmitting the signal may be any one of a sub-frame, a wireless frame,a TTI, an OFDM symbol and a wireless frame.

When the first resource cycle is greater than the second resource cycle,some basic control information changed little along with the time may becarried by the first DCI, and the control information (such as physicalresource distribution information) changed greatly with the time may becarried by the second DCI. In other words, the network device may employa large sending cycle when sending the first DCI and employ a smallsending cycle when sending the second DCI. In this way, by sending thefirst DCI and the second DCI via different cycles, a certain signalingoverhead may be saved.

It should be understood that, it may be appropriate to set the firstresource cycle to be the same as the second resource cycle or set thefirst resource cycle to be smaller than the second resource cycleaccording to the requirement on data transmitted between the networkdevice and the terminal device. When the first resource cycle is smallerthan the second resource cycle, some basic control information changedlittle with the time may be carried via the second DCI and some controlinformation changed greatly with the time is carried by the first DCI.

Optionally, as an embodiment, when the terminal device respectivelydetects the first DCI and the second DCI at the first resource periodand the second resource period, the terminal device may send or receivethe target data jointly according to a combination of controlinformation in the second DCI detected within a current second resourcecycle and control information in the first DCI detected recently. Thereason is that the first resource cycle is greater than the secondresource cycle, the first DCI may carry some basic parameter informationand the basic parameter information is changed little with the time. Byemploying different cycles to send the first DCI and the second DCI, acertain signaling overhead can be saved and the data can be sent orreceived more flexibly.

Optionally, as an embodiment, if the terminal device does not detect theDCI within the current second resource cycle, the terminal device maynot send or receive the target data. It should be understood that, whenthe terminal device does not detect the first DCI or the second DCI, itmay refer to that the network device does not send the first DCI or thesecond DCI and may also refer to that the network device sends the firstDCI and the second DCI and the terminal device does not detect the firstDCI or the second DCI within a predetermined time. It should beunderstood that, when the network device does not send the first DCI orthe second DCI, it may refer to that the network device side does nothave a corresponding process of sending or receiving the data.

Optionally, as an embodiment, if the network device sends the first DCIto the terminal device on the public control channel, the terminaldevice may detect the first DCI on the public control channel. Thepublic control channel may be a Physical Downlink Control Channel(PDCCH). In addition, the terminal device may further detect the firstDCI according to public transmission parameters of the cell. The publictransmission parameters of the cell may include a physical resourceoccupied by the control channel, a resource distribution manner, aninformation scrambling manner and a check manner, etc. Furthermore, thepublic transmission parameters of the cell are known to users in thecell. In other words, the public transmission parameters are exclusiveto the cell, and as long as the network device sends the DCI to theterminal device in the cell, the terminal device in the cell may detectthe DCI sent by the network device based on the public transmissionparameters of the cell.

Optionally, as an embodiment, if the network device transmits the secondDCI on the public control channel, the terminal device may detect thesecond DCI on the public control channel. In addition, when the networkdevice does not send the second DCI to the terminal device on the publiccontrol channel, the terminal device may only detect the second DCI onparts of frequency domain resources of a system bandwidth. Herein, theparts of frequency domain resources are frequency domain resourcesindicated by the first DCI. For example, the network device may indicatethe second DCI via the first DCI of taking frequency domain resources ofsome numerolgy as the parts of frequency domain resources.

Specifically, the terminal device may detect the second DCI on a specialcontrol channel of a sub-band. For example, the terminal device maydetect the second DCI on an Enhanced Physical Downlink Control Channel(EPDCCH), and the terminal device may also detect the second DCI on afrequency domain resource corresponding to some numerolgy. In thisembodiment of the disclosure, by indicating via the first DCI to sendparts of frequency domain resources occupied by the second DCI, theterminal device only needs to detect the second DCI on the parts offrequency domain resources. Therefore, the complexity of detecting theDCI is reduced and the corresponding process is omitted.

Optionally, as an embodiment, a control channel for carrying the secondDCI and a data channel for carrying the target data occupy same timedomain resources or same frequency domain resources. That is to say, thenetwork device may send the second DCI and transmit the target data tothe terminal device on a same physical resource. It should be understoodthat, the time domain resource may be the OFDM symbol, the sub-frame andthe TTI, etc., and the frequency domain resource may be the PRB, thesub-band and the sub-carrier, etc. Specifically, when the controlchannel of the second DCI and the data channel carrying the target dataoccupy the same time domain resource, the multiplexing may be performedby adopting a Frequency Division Mutiplexing (FDM) manner. At thismoment, different PRBs are distributed to the control channel and thedata channel of the second DCI to respectively transmit the second DCIand the target data on the data channel. When the control channel of thesecond DCI and the data channel of the target data occupy the samefrequency domain resource, the multiplexing may be performed by adoptinga Time Division Mutiplexing (TDM) manner. At this moment, different OFDMsymbols are distributed to the control channel and the data channel ofthe second DCI to respectively transmit the second DCI and the targetdata on the data channel.

Optionally, as an embodiment, the first DCI may include information usedwhen the terminal device sends or receives the target data on the datachannel, and the information may specifically include at least one ofthe following information:

a sub-carrier interval, which is used for indicating a frequencyinterval between adjacent sub-carriers, for example, the sub-carrierinterval may be 15 KHz and 60 KHz, etc.;

a total number of sub-carriers under a preset bandwidth, which may beused for indicating a total number of sub-carriers corresponding to eachpossible system bandwidth;

a total number of sub-carriers included in a PRB, which is used forindicating how many sub-carriers included in one PRB, for example, atotal number of sub-carriers included in one PRB may be an integralmultiple of 12, such as 12, 24 and the like;

the length of an OFDM symbol, the OFDM symbol of which may be an OFDMsymbol used when the terminal device sends or receives the target data;

a total number of points used to generate an OFDM signal generated byFourier transform or inverse Fourier transform, in which the Fouriertransform may be Fast Fourier Transform (FFT) and the inverse Fouriertransform may be Inverse Fast Fourier Transform (IFFT);

the number of the OFDM symbols included in a TTI, for example, thenumber of the OFDM symbols included in one TTI may be an integralmultiple of 14 or values such as 2, 4 and 7, etc.;

a total number of TTIs included in a preset time unit, such as a totalnumber of TTIs included in a fixed time such as 1 ms or 10 ms;

signal prefix information, which may be signal prefix information of asignal used when the terminal device sends or receives the target dataand may include a time length of a cyclic prefix of the signal, andwhether the cyclic prefix employs conventional cyclic prefix or extendedcyclic prefix.

A/N feedback time sequence information, which is used for indicating atime sequence relationship between sending or receiving of the targetdata and a corresponding A/N feedback, and specifically, the A/Nfeedback time sequence information referring to the number of sub-frameoffsets between a transmission time unit where the target data arelocated and a transmission time unit where a corresponding A/N feedbackis located;

a physical resource distribution manner, which is used for indicatingwhat manner is adopted to distribute a physical resource when resourcedistribution is performed (whether a type 0, a type 1 or a type 2 isadopted); and frequency hopping configuration information, which is usedfor indicating whether frequency hopping of a frequency domain is openedor not.

Optionally, as an embodiment, the second DCI may include informationused when the terminal device sends or receives the target data on thedata channel, and the information may specifically include at least oneof the following information:

physical resource distribution information, which is used for indicatingan information domain of a corresponding physical resource distributionmanner, or is used for indicating a distribution information domain of afrequency domain resource occupied by the target data based on DCIscheduling, for example, the frequency domain resource may be a PRB;

uplink sending power control information, which is used for dynamicallyadjusting an uplink sending power of the terminal device;

A/N feedback time sequence information, which is used for indicating atime sequence relationship between sending or receiving of the targetdata and a corresponding A/N feedback, and specifically, the A/Nfeedback time sequence information referring to the number of sub-frameoffsets between a transmission time unit where the target data arclocated and a transmission time unit where a corresponding A/N feedbackis located; and

frequency hopping configuration information, which is used forindicating whether frequency hopping of a frequency domain is opened ornot.

HARQ progress information, indicating a corresponding HARQ progress whenthe terminal device sends or receives the target data on the datachannel;

CSI reporting trigger information, which is used for triggering theterminal device to perform aperiodic CSI reporting;

SRS transmission trigger information, which is used for trigger theterminal device to perform aperiodic SRS reporting;

transmission-block transmission information, including transmissioninformation on each transmission block and specifically includingModulation and Coding Scheme (MCS), New Data indicator (NDI) andRedundancy Version (RV) of the each transmission block.

uplink DMRS configuration information, used for indicating a cyclicshift of an uplink DMRS and an Orthogonal Cover Code (OCC)configuration; and

downlink DMRS configuration information, used for indicatingconfiguration information such as a port used by downlink DMRS and ascrambling sequence, etc.

The wireless network based communication method in the embodiments ofthe disclosure is described above in detail from a terminal device sidein combination with FIG. 1. However, the wireless network basedcommunication method in the embodiments of the disclosure will bedescribed below in details from a network device side in combinationwith FIG. 2. It should be understood that the descriptions of theterminal device side and the network device side are corresponding toeach other, so the portions not described in detail may be referred tothe embodiment in FIG. 1.

FIG. 2 is a schematic flowchart of a wireless network basedcommunication method in an embodiment of the disclosure. The methodshown in FIG. 2 includes the following operations.

At 210, a network device sends first DCI to a terminal device.

At 220, the network device sends second DCI to the terminal device,where the first DCI and the second DCI are used by the terminal deviceto send or receive target data.

In some embodiments, if there are multiple DCI formats possibly used bythe first DCI and the second DCI, in order to obtain the first DCI andthe second DCI sent by the network device, the terminal device detectsthe DCIs respectively based on each DCI format till the first DCI andthe second DCI are detected based on a certain DCI format.

In some embodiments, the first DCI and the second DCI may includedifferent types of control information. In this way, the different typesof control information may be transmitted via the first DCI and thesecond DCI, and by transmitting multiple DCIs to carry different controlinformation, the transmission requirements on the different types ofcontrol information may be met.

In some embodiments, the first DCI and the second DCI may have differentDCI formats. For example, the DCI format of the first DCI is DCI1 andthat of the second DCI is DCI1A. Of course, the first DCI and the secondDCI may also have the same DCI format.

In some embodiments, length of information in the first DCI is differentfrom length of information in the second DCI and/or information contentin the first DCI is different from information content in the secondDCI. Herein, different information lengths refer to that total bitnumbers of the control information included in the DCIs are different,and different information contents refer to that control informationdomains included in the DCIs or contents indicated by each controldomain in the DCIs are different.

In this embodiment of the disclosure, through two DCIs, the differenttypes of control information may be sent, so that the transmissionrequirements on the different types of the control information can bemet and the terminal device sends or receives the target data accordingto the control information in the two DCIs. In addition, when thedifferent types of control information have different requirements on atransmission cycle, the different types of control information arecarried by the two DCIs so that a sending cycle of the controlinformation can be determined reasonably to save a certain signalingoverhead.

Optionally, as an embodiment, the network device may regularly send thefirst DCI and the second DCI to the terminal device. Specifically, thenetwork device may respectively send the first DCI and the second DCI tothe terminal device at a first resource cycle and a second resourcecycle.

In some embodiments, the first resource cycle and the second resourcecycle may be an integral multiple of a time domain resource unit fortransmitting a signal, and the first resource cycle is greater than thesecond resource cycle. Herein, the time domain resource unit fortransmitting the signal may be any one of a sub-frame, a TTI, an OFDMsymbol and a wireless frame.

Optionally, as an embodiment, the network device may send the first DCIon a public control channel, and the network device may also send thefirst DCI according to public transmission parameters of a cell. Thepublic transmission parameters of the cell may include a physicalresource occupied by the control channel, a resource distributionmanner, an information scrambling manner and a check manner, etc.Furthermore, the public transmission parameters of the cell are known tousers in the cell. In other words, the public transmission parametersare exclusive to the cell, and as long as the network device sends theDCI to the terminal device in the cell, the terminal device in the cellmay detect the DCI sent by the network device based on the publictransmission parameters of the cell.

Optionally, as an embodiment, the network device may send the second DCIon the public control channel, and the network device may also send thesecond DCI on parts of frequency domain resources of a system bandwidth.Herein, the parts of frequency domain resources are frequency domainresources indicated by the first DCI. In this embodiment of thedisclosure, the network device indicates via the first DCI to send thefrequency domain resources occupied by the second DCI, so that theterminal device only needs to detect the second DCI on the parts offrequency domain resources. Therefore, the complexity of detecting theDCI is reduced and the corresponding process is omitted.

Optionally, as an embodiment, a control channel for carrying the secondDCI and a data channel for carrying the target data occupy same timedomain resources or frequency domain resources.

Optionally, as an embodiment, the first DCI sent by the network devicemay include at least one of the following information used when theterminal device sends or receives the target data:

a sub-carrier interval;

a total number of sub-carriers under a preset bandwidth;

a total number of sub-carriers included in a PRB; the length of an OFDMsymbol;

a total number of points used to generate an OFDM signal by Fouriertransform or inverse Fourier transform;

a total number of OFDM symbols included in a TTI;

a total number of TTIs included in a preset time unit; signal prefixinformation;

A/N feedback time sequence information;

a physical resource distribution manner; or

frequency hopping configuration information.

Optionally, as an embodiment, the second DCI sent by the network devicemay include at least one of the following information used when theterminal device sends or receives the target data:

a physical resource distribution information;

uplink sending power control information;

A/N feedback time sequence information;

frequency hopping configuration information;

HARQ progress information;

CSI reporting trigger information;

SRS transmission trigger information;

uplink DMRS configuration information; or

downlink DMRS configuration information.

The wireless network based communication method provided by theembodiments of the disclosure will be described below in detail withspecific examples in combination with FIG. 3 to FIG. 4.

FIG. 3 is a schematic flowchart of a wireless network basedcommunication method in an embodiment of the disclosure. The methodshown in FIG. 3 includes the following operations.

At 301, a network device transmits first DCI on a public control channelin a DCI1 format.

The public control channel may occupy an overall system bandwidth, andemploys a cell exclusive transmission manner when transmitting the firstDCI. That is, a resource distribution manner, an information scramblingmanner, a check manner and the like adopted by the public controlchannel are exclusive to a cell and the terminal device needs to obtainthese cell exclusive parameters in advance. In this way, when thenetwork device sends the DCI to the terminal device of the cell, theterminal device of the cell may detect the DCI sent by the networkdevice based on the public transmission parameters of the cell.

At 302, the terminal device detects the first DCI on the public controlchannel in the DCI1 format and obtains sub-carrier interval informationand frequency domain resource information included in the first DCI.Herein, the sub-carrier interval information in the first DCI indicatesthe terminal device of selecting a sub-carrier interval 1 from multiplecandidate sub-carriers, and the frequency domain information indicatesthe terminal device of using a frequency domain resource 1 of thesub-carrier interval 1 (the frequency domain resource 1 specifically maybe a Program Database (PDB) or a sub-band).

At 303, the network device transmits second DCI at the sub-carrierinterval 1 in an exclusive control channel resource area of thefrequency domain resource 1 in a DCI2 format.

At 304, the terminal device respectively detects the DCIs sent by thenetwork device in multiple DCI2 and DCI3 formats at the sub-carrierinterval 1 in the exclusive control channel resource area of thefrequency domain resource 1 so as to detect the second DCI and obtaincontrol information included in the second DCI. The second DCI2 mayinclude the following information: physical resource distributioninformation, A/N feedback time sequence information, HARQ progressinformation, SRS transmission trigger information, transmissioninformation on each transmission block and downlink DMRS configurationinformation.

At 305, the terminal device detects a downlink data channel at thesub-carrier interval 1 on a physical resource indicated by the secondDCI based on the control information in the second DCI.

FIG. 4 is a schematic flowchart of a wireless network basedcommunication method in an embodiment of the disclosure. The methodshown in FIG. 4 includes the following operations.

At 401, a network device transmits first DCI on a public control channelof sub-frames N in a DCI1 format. Herein, each downlink sub-frameincludes a public control channel, but only the public control channelhaving a sub-frame index number N meeting N mod T=0 (a remainder of theN to the T is equal to zero) in the downlink sub-frame can be used fortransmitting the first DCI in the DCI1 format. In other words, not allof the sub-frames need to transmit the first DCI, but the first DCI istransmitted once every T sub-frames. For example, when T=5, the networkdevice only need to transmit the first DCI once every five sub-frames.

The public control channel may occupy an overall system bandwidth, andemploys a cell exclusive transmission manner. That is, a resourcedistribution manner, an information scrambling manner, a check mannerand the like adopted by the public control channel are exclusive to acell and the terminal device needs to obtain these cell exclusiveparameters in advance. When the network device sends the DCI to theterminal device of the cell, the terminal device of the cell may detectsthe DCI sent by the network device based on the public transmissionparameters of the cell.

At 402, the terminal device detects the first DCI on the public controlchannel of the sub-frames N in the DCII format and obtains sub-carrierinterval information and frequency domain resource distribution typeinformation included in the first DCI, where the sub-carrier intervalinformation in the second DCI indicates the terminal device of selectinga sub-carrier interval 1 from multiple candidate sub-carriers, and thefrequency domain resource distribution type information indicates theterminal device that a frequency domain resource distribution type usedwhen data channel transmission is performed is a type 1.

At 403, the network device transmits the second DCI on a public controlchannel of sub-frames N+2 in a DCI2 format. The network device sends thefirst DCI to the terminal device once every N sub-frames and sends thesecond DCI to the terminal device once every N+2 sub-frames, whichindicates that a cycle for sending the first DCI is smaller than thatfor sending the second DCI. Therefore, it may be appropriate to carrysome basic control information changed little with the time in thesecond DCI and carry some control information changed greatly with thetime in the first DCI. In this way, by sending the first DCI and thesecond DCI via different cycles, a certain signaling overhead may besaved.

At 404, the terminal device detects the second DCI sent by the networkdevice in the sub-frames N+2 based on a DCI2 format to obtain controlinformation included in the second DCI. The second DCI2 may include thefollowing information: physical resource distribution information,uplink sending power control information, HARQ progress information, CSIreporting trigger information, SRS transmission trigger information,transmission information on each transmission block and uplink DMRSconfiguration information.

At 405, the terminal device transmits uplink data on a physical resourceindicated by the second DCI at a frequency domain resource distributionmanner 1 and a sub-carrier interval 1 according to the controlinformation in the second DCI.

The wireless network based communication method in the embodiments ofthe disclosure is described above in detail in combination with FIG. 1to FIG. 4. However, the terminal device and the network device will bedescribed below in detail in combination with FIG. 5 to FIG. 8. Itshould be understood that, the terminal device and the network device inFIG. 5 to FIG. 8 can implement each step above executed by the terminaldevice and the network device, which will not be detailed here to avoidthe repetition.

FIG. 5 is a schematic structural diagram of a terminal device in anembodiment of the disclosure. The terminal device 500 shown in FIG. 5may include a first detection module 510, a second detection module 520and a processing module 530.

The first detection module 510 is configured to detect first DCI sent bya network device.

The second detection module 520 is configured to detect second DCI sentby the network device.

The processing module 530 is configured to send or receive target dataaccording to a combination of control information in the first DCI andcontrol information in the second DCI.

In this embodiment of the disclosure, through two DCIs, the differenttypes of control information may be sent, so that the transmissionrequirements on the different types of the control information can bemet and the terminal device sends or receives the target data accordingto the control information in the two DCIs. In addition, when thedifferent types of control information have different requirements on atransmission cycle, the different types of control information arecarried by the two DCIs so that a sending cycle of the controlinformation can be determined reasonably to save a certain signalingoverhead.

Optionally, as an embodiment, the first DCI and the second DCI havedifferent DCI formats from each other.

Optionally, as an embodiment, length of information in the first DCI isdifferent from length of information in the second DCI and/orinformation content in the first DCI is different from informationcontent in the second DCI.

Optionally, as an embodiment, the first detection module 510 isspecifically configured to regularly detect the first DCI sent by thenetwork device at a first resource cycle, and the second detectionmodule 520 is specifically configured to regularly detect the second DCIsent by the network device at a second resource cycle.

Optionally, as an embodiment, the first resource cycle and the secondresource cycle are an integral multiple of a time domain resource unitfor transmitting a signal; and the first resource cycle is greater thanthe second resource cycle.

Optionally, as an embodiment, the processing module 530 is specificallyconfigured to:

send or receive the target data according to a combination of controlinformation in the second DCI detected within a current second resourcecycle and control information in the first DCI detected recently.

Optionally, as an embodiment, the processing module 530 is furtherconfigured to:

not send or receive the data when the second detection module does notdetect the second DCI within the current second resource cycle.

Optionally, as an embodiment, the first detection module 510 isspecifically configured to detect the first DCI on a public controlchannel, and/or detect the first DCI according to public transmissionparameters of a cell.

Optionally, as an embodiment, the second detection module 520 isspecifically configured to detect the second DCI on the public controlchannel, and/or detect the second DCI on parts of frequency domainresources of a system bandwidth.

Optionally, as an embodiment, the parts of frequency domain resourcesare frequency domain resources indicated by the first DCI.

Optionally, as an embodiment, a control channel for carrying the secondDCI and a data channel for carrying the target data occupy same timedomain resources or frequency domain resources.

Optionally, as an embodiment, the first DCI includes at least one of thefollowing information used when the terminal device sends or receivesthe target data:

a sub-carrier interval;

a total number of sub-carriers under a preset bandwidth;

a total number of sub-carriers included in a PRB; the length of an OFDMsymbol;

a total number of points used to generate an OFDM signal by Fouriertransform or inverse Fourier transform;

a total number of OFDM symbols included in a TTI;

a total number of TTIs included in a preset time unit;

signal prefix information;

A/N feedback time sequence information;

a physical resource distribution manner; or

frequency hopping configuration information.

Optionally, as an embodiment, the first DCI includes at least one of thefollowing information used when the terminal device sends or receivesthe target data:

a physical resource distribution manner;

uplink sending power control information;

A/N feedback time sequence information;

frequency hopping configuration information;

HARQ progress information;

CSI reporting trigger information;

SRS transmission trigger information;

transmission block transmission information;

uplink DMRS configuration information; or

downlink DMRS configuration information.

FIG. 6 is a schematic structural diagram of a terminal device in anembodiment of the disclosure. The network device 600 shown in FIG. 6 mayinclude a first sending module 610 and a second sending module 620.

The first sending module 610 is configured to send first DCI to aterminal device.

The second sending module 620 is configured to send second DCI to theterminal device, where the first DCI and the second DCI are used by theterminal device to send or receive target data.

In this embodiment of the disclosure, through two DCIs, the differenttypes of control information may be sent, so that the transmissionrequirements on the different types of the control information can bemet and the terminal device sends or receives the target data accordingto the control information in the two DCIS. In addition, when thedifferent types of control information have different requirements on atransmission cycle, the different types of control information arecarried by the two DC's so that a sending cycle of the controlinformation can be determined reasonably to save a certain signalingoverhead.

Optionally, as an embodiment, the first DCI and the second DCI havedifferent DCI formats from each other.

Optionally, as an embodiment, length of information in the first DCI isdifferent from length of information in the second DCI and/orinformation content in the first DCI is different from informationcontent in the second DCI.

Optionally, as an embodiment, the first sending module 610 isspecifically configured to regularly send the first DCI to the terminaldevice at a first resource cycle, and the second sending module 620 isspecifically configured to regularly send the second DCI to the terminaldevice at a second resource cycle.

Optionally, as an embodiment, the first resource cycle and the secondresource cycle are an integral multiple of a time domain resource unitfor transmitting a signal; and the first resource cycle is greater thanthe second resource cycle.

Optionally, as an embodiment, the first sending module 610 isspecifically configured to send the first DCI on a public controlchannel, and/or send the first DCI according to public transmissionparameters of a cell.

Optionally, as an embodiment, the second sending module 620 isspecifically configured to send the second DCI on the public controlchannel, and/or send the second DCI on parts of frequency domainresources of a system bandwidth.

Optionally, as an embodiment, the parts of frequency domain resourcesare frequency domain resources indicated by the first DCI.

Optionally, as an embodiment, a control channel for carrying the secondDCI and a data channel for carrying the target data occupy same timedomain resources or frequency domain resources.

Optionally, as an embodiment, the first DCI includes at least one of thefollowing information used when the processing module sends or receivesthe target data:

a sub-carrier interval;

a total number of sub-carriers under a preset bandwidth;

a total number of sub-carriers included in a PRB; the length of an OFDMsymbol;

a total number of points used to generate an OFDM signal by Fouriertransform or inverse Fourier transform;

a total number of OFDM symbols included in a TTI;

a total number of TTIs included in a preset time unit;

signal prefix information;

A/N feedback time sequence information;

a physical resource distribution manner; or

frequency hopping configuration information.

Optionally, as an embodiment, the second DCI includes at least one ofthe following information used when the processing module sends orreceives the target data:

a physical resource distribution manner;

uplink sending power control information;

A/N feedback time sequence information;

frequency hopping configuration information;

HARQ progress information;

CSI reporting trigger information;

SRS transmission trigger information;

transmission block transmission information;

uplink DMRS configuration information; or

downlink DMRS configuration information.

FIG. 7 is a schematic structural diagram of a terminal device in anembodiment of the disclosure. The terminal device 700 shown in FIG. 7may include a memory 710, a transceiver 720 and a processor 730.

The memory 710 is configured to store a program.

The transceiver 720 is configured to detect first DCI and second DCIsent by a network device.

The processor 730 is configured to execute the program stored in thememory 710; and when the program is executed, the processor 730 sends orreceives target data according to a combination of control informationin the first DCI and control information in the second DCI.

In this embodiment of the disclosure, through two DCIs, the differenttypes of control information may be sent, so that the transmissionrequirements on the different types of the control information can bemet and the terminal device sends or receives the target data accordingto the control information in the two DC's. In addition, when thedifferent types of control information have different requirements on atransmission cycle, the different types of control information arecarried by the two DCIs so that a sending cycle of the controlinformation can be determined reasonably to save a certain signalingoverhead.

Optionally, as an embodiment, the first DCI and the second DCI havedifferent DCI formats from each other.

Optionally, as an embodiment, length of information in the first DCI isdifferent from length of information in the second DCI and/orinformation content in the first DCI is different from informationcontent in the second DCI.

Optionally, as an embodiment, the transceiver 720 is specificallyconfigured to regularly detect the first DCI sent by the network deviceat a first resource cycle, and regularly detect the second DCI sent bythe network device at a second resource cycle.

Optionally, as an embodiment, the first resource cycle and the secondresource cycle are an integral multiple of a time domain resource unitfor transmitting a signal; and the first resource cycle is greater thanthe second resource cycle.

Optionally, as an embodiment, the processor 730 is specificallyconfigured to:

send or receive the target data in combination with the controlinformation in the second DCI detected by the transceiver 720 within acurrent second resource cycle and in the first DCI detected recently.

Optionally, as an embodiment, the processor 730 is further configuredto:

not send or receive the data when the transceiver 720 does not detectthe second DCI within the current second resource cycle.

Optionally, as an embodiment, the transceiver 720 is specificallyconfigured to detect the first DCI on a public control channel, and/ordetect the first DCI according to public transmission parameters of acell.

Optionally, as an embodiment, the transceiver 720 is specificallyconfigured to detect the second DCI on the public control channel,and/or detect the second DCI on parts of frequency domain resources of asystem bandwidth.

Optionally, as an embodiment, the parts of frequency domain resourcesare frequency domain resources indicated by the first DCI.

Optionally, as an embodiment, a control channel for carrying the secondDCI and a data channel for carrying the target data occupy same timedomain resources or frequency domain resources.

Optionally, as an embodiment, the first DCI includes at least one of thefollowing information used when the terminal device sends or receivesthe target data:

a sub-carrier interval;

a total number of sub-carriers under a preset bandwidth;

a total number of sub-carriers included in a PRB;

the length of an OFDM symbol;

a total number of points used to generate an OFDM signal by Fouriertransform or inverse Fourier transform;

a total number of OFDM symbols included in a TTI;

a total number of TTIs included in a preset time unit;

signal prefix information;

A/N feedback time sequence information;

a physical resource distribution manner; or

frequency hopping configuration information.

Optionally, as an embodiment, the first DCI includes at least one of thefollowing information used when the terminal device sends or receivesthe target data:

a physical resource distribution manner;

uplink sending power control information;

A/N feedback time sequence information;

frequency hopping configuration information;

HARQ progress information;

CSI reporting trigger information;

SRS transmission trigger information;

transmission block transmission information;

uplink DMRS configuration information; or

downlink DMRS configuration information.

FIG. 8 is a schematic structural diagram of a terminal device in anembodiment of the disclosure. The network device 800 shown in FIG. 8 mayinclude a memory 810 and a transceiver 820.

The memory 810 is configured to store a program.

The transceiver 820 is configured to send, when the program is executed,first DCI and second DCI to the terminal device, where the first DCI andthe second DCI are used by the terminal device to send or receive targetdata.

In this embodiment of the disclosure, through two DCIs, the differenttypes of control information may be sent, so that the transmissionrequirements on the different types of the control information can bemet and the terminal device sends or receives the target data accordingto the control information in the two DCIs. In addition, when thedifferent types of control information have different requirements on atransmission cycle, the different types of control information arecarried by the two DCIs so that a sending cycle of the controlinformation can be determined reasonably to save a certain signalingoverhead.

Optionally, as an embodiment, the first DCI and the second DCI havedifferent DCI formats from each other.

Optionally, as an embodiment, length of information in the first DCI isdifferent from length of information in the second DCI and/orinformation content in the first DCI is different from informationcontent in the second DCI.

Optionally, as an embodiment, the transceiver 820 is specificallyconfigured to regularly send the first DCI to the terminal device at afirst resource cycle, and regularly send the second DCI to the terminaldevice at a second resource cycle.

Optionally, as an embodiment, the first resource cycle and the secondresource cycle are an integral multiple of a time domain resource unitfor transmitting a signal; and the first resource cycle is greater thanthe second resource cycle.

Optionally, as an embodiment, the transceiver 820 is specificallyconfigured to send the first DCI on a public control channel, and/orsend the first DCI according to public transmission parameters of acell.

Optionally, as an embodiment, the transceiver 820 is specificallyconfigured to send the second DCI on the public control channel, and/orsend the second DCI on parts of frequency domain resources of a systembandwidth.

Optionally, as an embodiment, the parts of frequency domain resourcesare frequency domain resources indicated by the first DCI.

Optionally, as an embodiment, a control channel for carrying the secondDCI and a data channel for carrying the target data occupy same timedomain resources or frequency domain resources.

Optionally, as an embodiment, the first DCI includes at least one of thefollowing information used when the processing module sends or receivesthe target data:

a sub-carrier interval;

a total number of sub-carriers under a preset bandwidth;

a total number of sub-carriers included in a PRB;

the length of an OFDM symbol;

a total number of points used to generate an OFDM signal by Fouriertransform or inverse Fourier transform;

a total number of OFDM symbols included in a TTI;

a total number of TTIs included in a preset time unit;

signal prefix information;

A/N feedback time sequence information;

a physical resource distribution manner; or

frequency hopping configuration information.

Optionally, as an embodiment, the second DCI includes at least one ofthe following information used when the processing module sends orreceives the target data:

a physical resource distribution manner;

uplink sending power control information;

A/N feedback time sequence information;

frequency hopping configuration information;

HARQ progress information;

CSI reporting trigger information;

SKS transmission trigger information;

transmission block transmission information;

uplink DMRS configuration information; or

downlink DMRS configuration information.

A person of ordinary skill in the art may be aware that, in combinationwith the examples described in the embodiments disclosed in thisspecification, units and algorithm operations may be implemented byelectronic hardware or a combination of computer software and electronichardware. Whether the functions are performed by hardware or softwaredepends on particular applications and design constraint conditions ofthe technical solutions. A person skilled in the art may use differentmethods to implement the described functions for each particularapplication, but it should not be considered that the implementationgoes beyond the scope of the disclosure.

It may be clearly understood by a person skilled in the art that, forthe purpose of convenient and brief description, for a detailed workingprocess of the foregoing system, apparatus, and unit, reference may bemade to a corresponding process in the foregoing method embodiments, anddetails are not described herein again.

In the several embodiments provided in the present application, itshould be understood that, the disclosed system, apparatus, and methodmay be implemented in other manners. For example, the describedapparatus embodiment is merely exemplary. For example, the unit divisionis merely logical function division and may be other division in actualimplementation. For example, a plurality of units or components may becombined or integrated into another system, or some features may beignored or not performed. In addition, the displayed or discussed mutualcouplings or direct couplings or communication connections may beimplemented through some interfaces. The indirect couplings orcommunication connections between the apparatuses or units may beimplemented in electronic, mechanical, or other forms.

The units described as separate parts may or may not be physicallyseparate, and parts displayed as units may or may not be physical units,may be located in one position, or may be distributed on a plurality ofnetwork units. Some or all of the units may be selected according toactual needs to achieve the objectives of the solutions of theembodiments.

In addition, functional units in the embodiments of the disclosure maybe integrated into one processing unit, or each of the units may existalone physically, or two or more units are integrated into one unit.

When the functions are implemented in the form of a software functionalunit and sold or used as an independent product, the functions may bestored in a computer-readable storage medium. Based on such anunderstanding, the technical solutions of the disclosure essentially, orthe part contributing to the prior art, or some of the technicalsolutions may be implemented in a form of a software product. Thesoftware product is stored in a storage medium and includes severalinstructions for instructing a computer device (which may be a personalcomputer, a server, or a network device) to perform all or some of theoperations of the methods described in the embodiments of thedisclosure. The foregoing storage medium includes any medium that canstore program code, such as a Universal Serial Bus (USB) flash drive, aremovable hard disk, a Read-Only Memory (ROM), a Random Access Memory(RAM), a magnetic disk, or an optical disc.

The foregoing descriptions are merely implementation manners of thedisclosure but are not intended to limit the protection scope of thedisclosure. Any variation or replacement readily figured out by a personskilled in the art within the technical scope disclosed in thedisclosure shall fall within the protection scope of the disclosure.Therefore, the protection scope of the disclosure shall be subject tothe protection scope of the claims.

The invention claimed is:
 1. A wireless network based communicationmethod, comprising: detecting, by a terminal device, first DownlinkControl Information (DCI) sent by a network device; detecting, by theterminal device, second DCI sent by the network device, wherein thesecond DCI comprises Channel State Information (CSI) reporting triggerinformation and/or Sounding Reference Signal (SRS) transmission triggerinformation used when the terminal device sends target data; andsending, by the terminal device, the target data according to acombination of control information in the first DCI and controlinformation in the second DCI.
 2. The method of claim 1, wherein thefirst DCI and the second DCI have different DCI formats from each other.3. The method of claim 1, wherein length of information in the first DCIis different from length of information in the second DCI and/orinformation content in the first DCI is different from informationcontent in the second DCI.
 4. The method of claim 1, wherein detecting,by a terminal device, first DCI sent by a network device comprises:regularly detecting, by the terminal device, the first DCI sent by thenetwork device at a first resource cycle; and detecting, by the terminaldevice, second DCI sent by the network device comprises: regularlydetecting, by the terminal device, the second DCI sent by the networkdevice at a second resource cycle.
 5. The method of claim 4, wherein thefirst resource cycle and the second resource cycle are an integralmultiple of a time domain resource unit for transmitting a signal; andthe first resource cycle is greater than the second resource cycle. 6.The method of claim 4, wherein sending, by the terminal device, targetdata according to a combination of control information in the first DCIand control information in the second DCI comprises: sending, by theterminal device, the target data according to a combination of controlinformation in the second DCI detected within a current second resourcecycle and control information in the first DCI detected recently.
 7. Themethod of claim 4, further comprising: not sending, by the terminaldevice, the target data when the terminal device does not detect thesecond DCI within the current second resource cycle.
 8. The method ofclaim 1, wherein detecting, by a terminal device, first DCI sent by anetwork device comprises at least one of: detecting, by the terminaldevice, the first DCI on a public control channel, or detecting, by theterminal device, the first DCI according to public transmissionparameters of a cell.
 9. The method of claim 1, wherein a controlchannel for carrying the second DCI and a data channel for carrying thetarget data occupy same time domain resources or same frequency domainresources.
 10. The method of claim 1, wherein the first DCI comprises atleast one of the following information used when the terminal devicesends or receives the target data: a sub-carrier interval; a totalnumber of sub-carriers under a preset bandwidth; a total number ofsub-carriers included in a Physical Resource Block (PRB); a length of anOrthogonal Frequency Division Multiplexing (OFDM) symbol; a total numberof points used to generate an OFDM signal by Fourier transform orinverse Fourier transform; a total number of OFDM symbols comprised in aTransmission Time Interval (TTI); a total number of TTIs comprised in apreset time unit; signal prefix information; A/N feedback time sequenceinformation; a physical resource distribution manner; or frequencyhopping configuration information.
 11. A wireless network basedcommunication method, comprising: sending, by a network device, firstDownlink Control Information (DCI) to a terminal device; and sending, bythe network device, second DCI to the terminal device, wherein the firstDCI and the second DCI are used by the terminal device to send orreceive target data; wherein the second DCI comprises Channel StateInformation (CSI) reporting trigger information and/or SoundingReference Signal (SRS) transmission trigger information used when theterminal device sends the target data.
 12. A terminal device,comprising: transceiver, configured to: detect first Downlink ControlInformation (DCI) sent by a network device; detect second DCI sent bythe network device, wherein the second DCI comprises Channel StateInformation (CSI) reporting trigger information and/or SoundingReference Signal (SRS) transmission trigger information used when theterminal device sends target data; and processor, configured to controlthe transceiver to send the target data according to a combination ofcontrol information in the first DCI and control information in thesecond DCI.
 13. The terminal device of claim 12, wherein the first DCIand the second DCI have different DCI formats from each other, and/orwherein length of information in the first DCI is different from lengthof information in the second DCI and/or information content in the firstDCI is different from information content in the second DCI.
 14. Theterminal device of claim 12, wherein the transceiver is specificallyconfigured to: regularly detect the first DCI sent by the network deviceat a first resource cycle; and regularly detect the second DCI sent bythe network device at a second resource cycle, wherein the firstresource cycle and the second resource cycle are an integral multiple ofa time domain resource unit for transmitting a signal; and the firstresource cycle is greater than the second resource cycle.
 15. Theterminal device of claim 12, wherein the transceiver is specificallyconfigured to perform at least one of: detecting the first DCI on apublic control channel, or detecting the first DCI according to publictransmission parameters of a cell.
 16. The terminal device of claim 14,wherein the first resource cycle and the second resource cycle are anintegral multiple of a time domain resource unit for transmitting asignal; and the first resource cycle is greater than the second resourcecycle.
 17. The terminal device of claim 14, wherein the processor isspecifically configured to control the transceiver to: send the targetdata according to a combination of control information in the second DCIdetected within a current second resource cycle and control informationin the first DCI detected recently.
 18. The terminal device of claim 14,wherein the processor is further configured to control the transceiverto: not send the target data when the transceiver does not detect thesecond DCI within the current second resource cycle.
 19. The terminaldevice of claim 12, wherein a control channel for carrying the secondDCI and a data channel for carrying the target data occupy same timedomain resources or same frequency domain resources.
 20. The method ofclaim 1, wherein detecting, by the terminal device, the second DCI sentby the network device comprises: detecting, by the terminal device, thesecond DCI sent by the network device on parts of frequency domainresources of a system bandwidth, wherein the parts of frequency domainresources are frequency domain resources indicated by the first DCI.